eBeam pointing devices linux kernel driver and calibration tools

Driver : ebeam
Bridge the usb device to the input subsystem, creating a generic event device exposed to user space. Xorg's evdev input driver automaticaly use it like a tablet. The module is licensed under the GNU GPL v2.

Erika Enterprise

Erika Enterprise is a minimal real-time kernel for single and multicore embedded systems.

Erika Enterprise is a free, open-source implementation of the OSEK/VDX API, implementing conformance classes BCC1, BCC2, ECC1, ECC2, with an OSEK OIL compiler integrated into Eclipse, and OSEK ORTI support for Lauterbach debuggers.

Erika Enterprise makes multi-core application development easy: hiding the complexity of the underlying architectures, Erika Enterprise makes no difference if a code runs on a single or a multi-core platform.

Erika Enterprise is licensed under the GPL with linking exception license (the same license of the classpath project)